文献类型：期刊文献

英文题名：Modeling and experimental study on a photochemical microscale continuous oscillatory baffled reactor

作者：Liu, Peiwen[1];Zhu, Weiping[1];Zhao, Fang[2]

机构：[1]East China Univ Sci & Technol, Sch Pharm, State Key Lab Bioreactor Engn, Shanghai Key Lab Chem Biol, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2024

卷号：70

期号：11

外文期刊名：AICHE JOURNAL

收录：;EI(收录号：20243216840170);WOS:【SCI-EXPANDED(收录号:WOS:001286482000001)】；

基金：National Natural Science Foundation of China, Grant/Award Numbers: 21476077, 21808059, 21878088; Key Project of the Shanghai Science and Technology Committee, Grant/Award Number: 18DZ1112703.

语种：英文

外文关键词：continuous oscillatory baffled reactor; mass transfer intensification; microreactor; photooxidation of dihydroartemisinic acid; visible light photocatalysis

摘要：Herein, the first photochemical microscale continuous oscillatory baffled reactor, that is, Photo-mu COBR, was designed and evaluated. Computational fluid dynamics simulations were used to optimize the key structural parameter and operating conditions. Then, the mixing process was simulated and the mu COBR was shown to be more than 23 times faster than the straight channel both under oscillating conditions. Finally, a glass Photo-mu COBR was fabricated by femtosecond laser internal engraving technology, and the photocatalytic gas-liquid oxidation of dihydroartemisinic acid was performed. A yield of 65.9% was achieved in a residence time of similar to 120 s and at a gas-liquid flow rate ratio of 1:3 (vs. 18.6% in the capillary photomicroreactor under identical conditions). The results in this work offer guidelines for the design and operation of microscale COBRs, and the as-fabricated Photo-mu COBR displays good potential for gas-liquid photochemical reactions.